Quadratic equation with root 1 is :-(A) 2x ^ 2 + x - 1 = 0 (B) 2x ^ 2 - x - 1 = 0 (C) 2x ^ 2 + x + 1 = 0 (D) 2x ^ 2 - x + 1 = 0​

Apath 3 m wide runs around the inside of a square park inside 60 m.find the area of the path.pls

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap